* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    width: 100%;
    height: 100vh;
    background: #23303e;
    display: flex;
}

.content {
    margin: auto;
    color: #FFF;
    display: flex;
    font-size: 80px;
    font-weight: bolder;
}
.content .txt{
    animation: animate ease 0.5s infinite alternate;
    animation-delay: calc(var(--i) / 10 * 1s);
}
@keyframes animate{
    100%{
        color: #91c5b0;
        filter: drop-shadow(0 0 10px #91c5b0);
        transform: translateY(50px);
    }
}